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<?php
declare(strict_types=1);
namespace MartinGeorgiev\Doctrine\ORM\Query\AST\Functions;
use Doctrine\ORM\Query\AST\Node;
use MartinGeorgiev\Doctrine\ORM\Query\AST\Functions\Exception\InvalidArgumentForVariadicFunctionException;
/**
* Implementation of PostgreSQL REGEXP_INSTR().
*
* Returns the position within string where the Nth match of the POSIX regular expression pattern occurs,
* or zero if there is no such match.
* @see https://www.postgresql.org/docs/15/functions-matching.html#FUNCTIONS-POSIX-REGEXP
* @since 3.1
* @author Martin Georgiev <[email protected]>
* @example Using it in DQL: "SELECT REGEXP_INSTR(e.text, 'c(.)(..)', 1, 1, 0, 'i') FROM Entity e"
*/
class RegexpInstr extends BaseVariadicFunction
{
protected function customizeFunction(): void
$this->setFunctionPrototype('regexp_instr(%s)');
}
protected function validateArguments(Node ...$arguments): void
$argumentCount = \count($arguments);
if ($argumentCount < 2 || $argumentCount > 6) {
throw InvalidArgumentForVariadicFunctionException::between('regexp_instr', 2, 6);
martin-georgiev /
postgresql-for-doctrine
